: Probes are applied to the tread surface to detect defects oriented parallel to the axis.
: Defines the limits for "allowable" internal discontinuities and specifies what qualifies as a rejection. How to Access the PDF iso 5948 pdf
ISO 5948 was strict regarding surface-breaking defects. While specific numerical limits varied based on the component (e.g., an axle vs. a frame), the general rules included: : Probes are applied to the tread surface
Because ISO standards are protected by copyright, you generally cannot find a legal, free PDF download. You can obtain the official document through these channels: an axle vs. a frame)
If you need the for legal/engineering work:
: ISO 5948:2018 (3rd edition), which replaced the 1994 version. Primary Application